Photoswitchable Chiral Cation-Binding Catalyst: Photocontrol of Catalytic Activity on Enantioselective Aminal Synthesis.
Org Lett
; 24(14): 2670-2674, 2022 04 15.
Article
em En
| MEDLINE
| ID: mdl-35353533
ABSTRACT
Design of a suitable photoswitchable chiral cation-binding cage for the synthesis of optically active aminals was established using the azobenzene-BINOL hybrid oligoethylene glycol (ABOEG) through E/Z isomerization of the azobenzene unit. Under photoirradiation, both the catalytic activity and enantioselectivity of the generating (Z)-ABOEG are enhanced, in contrast to that of (E)-ABOEG, which can be attributed to the geometrically distinct coordination behavior between the metal cation and the oligoethylene glycols.
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MEDLINE
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Álcoois
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En
Ano de publicação:
2022
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Article